MALICIOUS
260
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
T1027 Obfuscated Files or Information
The RTF file contains embedded OLE objects, including a PE executable identified by ClamAV as Win.Trojan.Vbkrypt-9795. The presence of RTF_MZ_HEX and RTF_OBJCLASS_PACKAGE heuristics indicates that a malicious executable is embedded within the document. The document body suggests a pretext of legal documents, which is a common lure for malicious attachments.
Heuristics 6
-
PE header (with DOS stub) in hex data critical RTF_MZ_HEXHex-encoded PE (MZ + DOS stub) found inside RTF — likely an embedded executable payload
-
ClamAV: Win.Trojan.Vbkrypt-9795 critical CLAMAV_DETECTIONClamAV detected this file as malware: Win.Trojan.Vbkrypt-9795
-
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAVClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
-
Package object class high RTF_OBJCLASS_PACKAGEOLE Package object — can wrap arbitrary files
-
OLE object data medium RTF_OBJDATARTF contains 1 \objdata section(s) — embedded OLE objects
-
Embedded OLE object medium RTF_OBJEMBRTF contains \objemb — embedded OLE object
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
objdata_00_off000000cf.bin4a1f38027de09064737e8a0e659b6d230b995380e967dfc2f919c646ad7ef6f3 |
rtf-objdata-decoded | RTF \objdata at offset 0xCF | 36651 bytes |
|
Detection
ClamAV:
Win.Trojan.Vbkrypt-9795
Obfuscation or payload:
unlikely
|
|||
Open this report in the interactive analyzer, or submit your own file for analysis.